DE59902540D1 - Process for the distillation of alpha-ethynyl carbinols - Google Patents
Process for the distillation of alpha-ethynyl carbinolsInfo
- Publication number
- DE59902540D1 DE59902540D1 DE59902540T DE59902540T DE59902540D1 DE 59902540 D1 DE59902540 D1 DE 59902540D1 DE 59902540 T DE59902540 T DE 59902540T DE 59902540 T DE59902540 T DE 59902540T DE 59902540 D1 DE59902540 D1 DE 59902540D1
- Authority
- DE
- Germany
- Prior art keywords
- alpha
- distillation
- carbinols
- ethynyl
- ethynyl carbinols
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Distillative recovery of alpha -ethynyl-carbinols (I) from the liquid reaction mixture from the addition of acetylene to alpha , beta -unsaturated carbonyl compounds comprises continuous distillation, in which the feed is passed to the middle of the distillation column, most of the water is distilled off at the top as azeotrope with the solvent and (I) is recovered below the feed port.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19856592A DE19856592A1 (en) | 1998-12-08 | 1998-12-08 | Process for the distillation of alpha-ethynyl carbinols |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59902540D1 true DE59902540D1 (en) | 2002-10-10 |
Family
ID=7890383
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19856592A Withdrawn DE19856592A1 (en) | 1998-12-08 | 1998-12-08 | Process for the distillation of alpha-ethynyl carbinols |
DE59902540T Expired - Fee Related DE59902540D1 (en) | 1998-12-08 | 1999-11-30 | Process for the distillation of alpha-ethynyl carbinols |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19856592A Withdrawn DE19856592A1 (en) | 1998-12-08 | 1998-12-08 | Process for the distillation of alpha-ethynyl carbinols |
Country Status (5)
Country | Link |
---|---|
US (1) | US6316680B1 (en) |
EP (1) | EP1008578B1 (en) |
JP (1) | JP2000169408A (en) |
AT (1) | ATE223366T1 (en) |
DE (2) | DE19856592A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108299161B (en) * | 2018-03-30 | 2020-05-19 | 西南化工研究设计院有限公司 | Method for removing water in 2-methyl-3-butyne-2-alcohol and entrainer |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3576889A (en) | 1968-01-26 | 1971-04-27 | Lithium Corp | Ethynylation of ketones and aldehydes to obtain alcohols |
FR1573026A (en) * | 1968-01-31 | 1969-07-04 | ||
DE2445133A1 (en) * | 1973-10-01 | 1975-04-03 | Hoffmann La Roche | PROCESS FOR THE MANUFACTURING OF AETHINYLCARBINOLS |
CH642936A5 (en) | 1979-10-19 | 1984-05-15 | Hoffmann La Roche | AETHINYLATION ALPHA, BETA-UNSATURATED KETONE. |
-
1998
- 1998-12-08 DE DE19856592A patent/DE19856592A1/en not_active Withdrawn
-
1999
- 1999-11-30 DE DE59902540T patent/DE59902540D1/en not_active Expired - Fee Related
- 1999-11-30 AT AT99123283T patent/ATE223366T1/en not_active IP Right Cessation
- 1999-11-30 EP EP99123283A patent/EP1008578B1/en not_active Expired - Lifetime
- 1999-12-06 US US09/455,161 patent/US6316680B1/en not_active Expired - Fee Related
- 1999-12-08 JP JP11349137A patent/JP2000169408A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JP2000169408A (en) | 2000-06-20 |
EP1008578B1 (en) | 2002-09-04 |
EP1008578A1 (en) | 2000-06-14 |
DE19856592A1 (en) | 2000-06-15 |
US6316680B1 (en) | 2001-11-13 |
ATE223366T1 (en) | 2002-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: BASF SE, 67063 LUDWIGSHAFEN, DE |
|
8339 | Ceased/non-payment of the annual fee |